Walker is returning from arthroscopic knee surgery for the second time in two summers. He has acknowledged that his recent left knee scope was more serious than the one on his right knee that limited his production last season.

Breer: Putting the '2K' back in 'CJ2K'

If Chris
Johnson gets his mojo back, it'll be part of the
Titans' drive to restore a key piece of their identity,
Albert Breer says.
More ...

The Titans' versatile new weapon believes it will take a few weeks before he feels "normal" again.

"The toughest thing for me will be to get in football shape," Walker said last week, via the Tennessean. "I condition every day, but it's not the same as blocking someone or trying to run from somebody."